<template>
  <div>
    <h2>随机点名</h2>
    <div class="box">
      <span>名字是：</span>
      <div class="qs">{{name}}</div>
    </div>
    <div class="btns">
      <button class="start" @click="start">开始</button>
      <button class="end" @click="end">结束</button>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      name:'',
      arr:['王金博','苏金海','李子威','朱俊伟','龙昱樨','刘想','郑宇成'],//0-6之间的随机数
      id:"",
      isBool:true
    };
  },
  methods:{
    start(){
      if (this.isBool===true) {
        this.isBool=false
              this.id=setInterval(()=>{
        const random=Math.floor(Math.random()*7)
        this.name=this.arr[random]
      },100)
      }

    },
    end(){
      this.isBool=true
      clearInterval(this.id)
    }
  }
  
};
</script>

<style>
* {
  margin: 0;
  padding: 0;
}

h2 {
  text-align: center;
}

.box {
  width: 600px;
  margin: 50px auto;
  display: flex;
  font-size: 25px;
  line-height: 40px;
}

.qs {
  width: 450px;
  height: 40px;
  color: red;
}

.btns {
  text-align: center;
}

.btns button {
  width: 120px;
  height: 35px;
  margin: 0 50px;
}
</style>